CN117082738A - PCB board production processingequipment - Google Patents

Abstract

The invention relates to the technical field of PCB processing, in particular to a PCB production and processing device. Technical problems: because annular PCB base plate itself can be formed by a plurality of arc PCB boards combination, among the prior art, through equipment cutting a ring PCB base plate on the PCB base plate, lead to very big circular PCB base plate at PCB base plate middle part to need abandon, cause the waste of PCB base plate. The technical scheme is as follows: a PCB production and processing device comprises a frame, a rotating system and the like; the front part of the upper surface of the frame is connected with a rotating system. According to the PCB production and processing device obtained through the design, the circular base plate is cut through the eight first milling cutters, eight arc-shaped slits are formed in the circular base plate, and two adjacent arc-shaped slits form one arc-shaped blank plate, so that four arc-shaped blank plates can be formed at a time, and the cutting efficiency of the arc-shaped blank plates is improved.

Description

PCB board production processingequipment

Technical Field

The invention relates to the technical field of PCB processing, in particular to a PCB production and processing device.

Background

The PCB substrate of the existing annular LED ceiling lamp is annular;

because annular PCB base plate itself can be formed by a plurality of arc PCB boards (as shown in figure 3), among the prior art, through equipment cutting an annular PCB base plate on the PCB base plate, lead to the very big circular PCB base plate in PCB base plate middle part to need abandon, cause the waste of PCB base plate. Based on this, there is also corresponding equipment processing in the prior art, wherein chinese patent (CN 113079641B) discloses a production system and working method of a PCB substrate of an annular lamp, the device cuts on a circular PCB board for multiple times through a first PCB cutting milling cutter and a second PCB cutting milling cutter to form an N-arc-shaped PCB blank board, and then limits the N-arc-shaped PCB blank board through N filling blocks, and then uses a cylindrical cutting knife to cut the circular PCB board, so that the N-arc-shaped PCB blank board falls off, but because the first PCB cutting milling cutter and the second PCB cutting milling cutter can only cut one piece at a time, the working efficiency is low, and burrs remain on the cut arc-shaped PCB blank board, which requires manual deburring, not only consumes a lot of manpower, but also spends a lot of time, and seriously affects the working efficiency.

Disclosure of Invention

The invention aims to overcome the defect that in the prior art, a large piece of round PCB substrate in the middle of the PCB substrate needs to be discarded and the PCB substrate is wasted because the annular PCB substrate can be formed by combining a plurality of arc-shaped PCB boards, and provides a processing device which can improve the production efficiency of the annular PCB substrate and reduce the waste of the PCB substrate.

Another object of the present invention is to provide a PCB production and processing apparatus having the above-mentioned functions.

The embodiment of the invention is realized by the following technical scheme: a PCB production and processing device comprises a frame and a rotating system; the front part of the upper surface of the frame is connected with a rotating system; the device also comprises a cutting system, a first milling cutter, a first scraper, a second scraper, a separating system and a second milling cutter; the rear part of the upper surface of the frame is connected with a cutting system; eight first milling cutters for cutting the PCB are connected to the cutting system, one group of every two first milling cutters is arranged, and the four groups are distributed in an annular array; the cutting system is connected with four first scrapers for scraping burrs; the cutting system is connected with four second scrapers for scraping burrs; the cutting system is connected with a separation system; the separation system is connected with two second milling cutters for cutting the PCB.

Optionally, the rotating system comprises a DD motor, a frustum, a receiving plate, a first mounting bracket, a first annular plate, a guide plate, a collecting box, a baffle plate and a limiting component; the front part of the upper surface of the frame is fixedly connected with a DD motor; the DD motor rotating part is fixedly connected with a frustum; the upper surface of the frustum is fixedly connected with a bearing plate; four first mounting brackets are fixedly connected to the front part of the upper surface of the frame, and are distributed in an annular array; the four first mounting brackets are positioned on the outer side of the DD motor; the four first mounting brackets are fixedly connected with a first annular plate together, and the inner annular surface of the first annular plate is contacted with the frustum; the left front part and the left rear part of the first annular plate are fixedly connected with a guide plate respectively; the left part of the upper surface of the frame is fixedly connected with a collecting box; the collecting box is fixedly connected with the two guide plates; a baffle is fixedly connected to the rear part of the inner ring surface of the first annular plate, and the baffle is contacted with the frustum; a limiting component is connected in the middle of the DD motor; the limiting component is connected with the frustum.

Optionally, twelve arc plates are arranged on the bearing plate, and the twelve arc plates are distributed in an annular array.

Optionally, a center post is provided at the center of the upper surface of the receiving plate, and an eccentric post is provided on the right side of the center post.

Optionally, the upper surface of the receiving plate is further provided with an annular groove for preventing the two second milling cutters from contacting the receiving plate during the cutting process.

Optionally, the limiting component comprises a first electric push rod, a disc, a circular ring, a connecting column, a first spring telescopic column and a limiting block; the middle part of the DD motor is fixedly connected with a first electric push rod; the telescopic part of the first electric push rod is fixedly connected with a disc; the circular ring is rotationally connected to the disc; twelve connecting columns are fixedly connected to the upper surface of the circular ring and distributed in an annular array; each connecting column is fixedly connected with a first spring telescopic column; a limiting block is fixedly connected with the telescopic end of each first spring telescopic column; twelve limiting blocks are inserted into the frustum.

Optionally, the cutting system comprises a hydraulic rod, a second mounting bracket, a first mounting plate, a power assembly, a cutting assembly, a second annular plate and a scraping assembly; two hydraulic rods are fixedly connected to the rear part of the upper surface of the frame; the two hydraulic rod telescopic parts are fixedly connected with a second mounting bracket; the lower surface of the second mounting bracket is fixedly connected with a first mounting plate; four arc-shaped sliding grooves are formed in the first mounting plate and distributed in an annular array; four power components are connected to the first mounting plate and distributed in an annular array; the four power components are respectively connected with a cutting component, and the four cutting components are distributed in an annular array; the lower surface of the first mounting plate is fixedly connected with a second annular plate; the inner ring surface of the second ring plate is connected with four scraping assemblies, and the four scraping assemblies are distributed in an annular array.

Optionally, the cutting assembly includes a limiting plate, a first sliding column, a first fixing plate, a second spring telescopic column, a second fixing plate, a driver, a second electric push rod, a first push block, a third electric push rod and a second push block; the power component is connected with a limiting plate; the limiting plate is provided with a guide chute; the limiting plate is connected with a first sliding column in a sliding way, and the upper part of the first sliding column is positioned in the guide chute; the first sliding column is in sliding connection with the first mounting plate, and the lower part of the first sliding column is positioned in the front arc-shaped sliding groove; the upper surface of the limiting plate is fixedly connected with a first fixing plate; the left side surface of the first fixed plate is fixedly connected with a second spring telescopic column; the telescopic end of the second spring telescopic column is fixedly connected with the first sliding column; the lower surface of the first sliding column is fixedly connected with a second fixing plate; the left part of the lower surface and the right part of the lower surface of the second fixed plate are fixedly connected with a driver respectively; two drivers are fixedly connected with a first milling cutter respectively; the left side surface of the second fixed plate is provided with a second electric push rod; the second electric push rod telescopic part is fixedly connected with a first push block; a third electric push rod is arranged on the right side surface of the second fixed plate; the second push block is fixedly connected with the telescopic part of the third electric push rod.

Optionally, the scraping component comprises a first curved plate, a first cylinder, a first pressing plate, a second sliding column, a first limiting rod, a first connecting plate, a first scraper, a second curved plate, a second cylinder, a second pressing plate, a third sliding column, a second limiting rod, a second connecting plate and a second scraper; a first arc bending plate is fixedly connected to the front part of the inner ring surface of the second annular plate; the lower surface of the first curved plate is fixedly connected with a first cylinder; the lower surface of the first cylinder is fixedly connected with a first pressing plate; the first pressing plate is provided with a first special-shaped chute and a first limit chute; the first pressing plate is connected with a second sliding column in a sliding way, and the second sliding column is positioned in the first special-shaped sliding groove; the upper part of the outer surface of the second sliding column is fixedly connected with a first limit rod; the first limiting rod is in sliding connection with the first pressing plate and is positioned in the first limiting chute; the lower part of the outer surface of the second sliding column is rotationally connected with a first connecting plate; the first connecting plate slides in the first special-shaped sliding groove; two torsion springs are connected between the first connecting plate and the second sliding column; the first connecting plate is rotationally connected with the first scraper, and two torsion springs are connected between the first connecting plate and the first scraper; the front part of the inner ring surface of the second ring plate is fixedly connected with a second arc bending plate, and the second arc bending plate is positioned on the right side of the first arc bending plate; the lower surface of the second curved plate is fixedly connected with a second cylinder; the lower surface of the second cylinder is fixedly connected with a second pressing plate; the second pressing plate is provided with a second special-shaped chute and a second limit chute; a third sliding column is connected to the second pressing plate in a sliding way, and the third sliding column is positioned in the second special-shaped sliding groove; the upper part of the outer surface of the third sliding column is fixedly connected with a second limiting rod; the second limiting rod is in sliding connection with the second pressing plate and is positioned in the second limiting chute; the lower part of the outer surface of the third sliding column is rotationally connected with a second connecting plate; the second connecting plate slides in the second special-shaped sliding groove; two torsion springs are connected between the second connecting plate and the third sliding column; the second connecting plate is rotationally connected with the second scraper, and two torsion springs are connected between the second connecting plate and the second scraper.

Optionally, the separation system comprises a third mounting bracket, a motor, a first straight gear, a sliding sleeve, a spline shaft, a second straight gear, a fourth electric push rod, a third connecting plate, a second mounting plate, a third spring telescopic column, a third fixing plate, a round rod, a roller, a fourth fixing plate and a third scraper; the upper surface of the second mounting bracket is fixedly connected with a third mounting bracket; a motor is fixedly connected to the third mounting bracket; the motor output shaft is fixedly connected with a first straight gear; the second mounting bracket and the first mounting plate are connected with a sliding sleeve in a common rotation manner; the sliding sleeve is positioned in front of the third mounting bracket; the inner ring surface of the sliding sleeve is connected with a spline shaft in a sliding way; the upper part of the outer ring surface of the sliding sleeve is fixedly connected with a second spur gear; the second straight gear is meshed with the first straight gear; the upper surface of the second mounting bracket is fixedly connected with a fourth electric push rod; the fourth electric push rod is positioned in front of the sliding sleeve; the fourth electric push rod telescopic part is fixedly connected with a third connecting plate; the third connecting plate is rotationally connected with the spline shaft; the lower surface of the spline shaft is fixedly connected with a second mounting plate; the second mounting plate is fixedly connected with two second milling cutters; two third spring telescopic columns are fixedly connected in the middle of the lower surface of the second mounting plate; the telescopic ends of the two third spring telescopic columns are fixedly connected with third fixing plates; a round rod is fixedly connected to the third fixing plate; the left part and the right part of the outer surface of the round rod are respectively and rotatably connected with a roller; a fourth fixing plate is fixedly connected with the left side surface and the right side surface of the round rod respectively; and the opposite sides of the two fourth fixing plates are fixedly connected with a third scraper respectively, and the two third scrapers are symmetrically distributed by taking the third fixing plates as the center.

Compared with the prior art, the invention has the following advantages:

according to the PCB production and processing device obtained through the design, the round base plate is supported by the supporting plate, and the round base plate is positioned through the center column and the eccentric column of the supporting plate, so that the problem of autorotation of the round base plate in the subsequent rotation process is prevented.

According to the PCB production and processing device obtained through the design, the circular base plate is cut through the eight first milling cutters, eight arc-shaped slits are formed in the circular base plate, and two adjacent arc-shaped slits form one arc-shaped blank plate, so that four arc-shaped blank plates can be formed at a time, and the cutting efficiency of the arc-shaped blank plates is improved.

According to the PCB production and processing device obtained through the design, in the resetting process of the first milling cutter, the first scraper and the second scraper are attached to the upper surface of the arc-shaped blank plate and move back, so that the residual burrs on the arc-shaped blank plate are scraped completely, the subsequent manual processing step is omitted, and the production cost is reduced.

According to the PCB production and processing device obtained through the design, twelve arc blank plates are limited through twelve limiting blocks, the twelve arc blank plates are cut through two second milling cutters to form twelve arc base plates, meanwhile, in the cutting process, burrs generated in the cutting process of the two second milling cutters are scraped through two third scrapers, two rollers limit the two third scrapers, the two third scrapers are prevented from being continuously moved downwards, the twelve arc base plates to be formed are scratched, and the twelve arc base plates are scrapped.

According to the PCB production and processing device obtained through the design, seven annular PCB substrates can be combined, so that the utilization rate of the PCB substrates is improved, and the waste of the PCB substrates is reduced.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application.

In the drawings:

fig. 1 is a schematic diagram of a three-dimensional structure of a PCB board production and processing apparatus of the present application;

fig. 2 is a schematic perspective view of a circular base plate, an arc blank plate and a scrap plate of the PCB board production and processing device of the present application;

fig. 3 is a schematic perspective view of an arc-shaped substrate of the PCB production and processing apparatus of the present application;

fig. 4 is a schematic perspective view of a frame and a rotating system of the PCB production and processing apparatus of the present application;

fig. 5 is a schematic perspective view of a rotating system of the PCB production and processing apparatus of the present application;

fig. 6 is a schematic perspective view of a DD motor, a frustum and a limiting assembly of the PCB production and processing apparatus of the present application;

fig. 7 is a schematic perspective view of a frame, a cutting system, a first milling cutter, a first scraper and a second scraper of the PCB board production and processing apparatus of the present application;

Fig. 8 is a first partial perspective view of a cutting system, a first milling cutter, a first scraper and a second scraper of the PCB board production and processing apparatus of the present invention;

fig. 9 is a schematic view showing a second partial perspective structure of a cutting system, a first milling cutter, a first scraper and a second scraper of the PCB board production and processing apparatus of the present invention;

fig. 10 is a schematic perspective view of a first sliding column, a second fixing plate, a driver, a first milling cutter, a second electric push rod, a first push block, a third electric push rod and a second push block of the PCB board production and processing device of the present invention;

fig. 11 is a schematic perspective view of a first arc plate, a first cylinder, a first pressing plate, a second sliding column, a first limiting rod, a first connecting plate and a first scraper of the PCB board production and processing device of the present invention;

fig. 12 is a schematic perspective view of a second arc plate, a second cylinder, a second pressing plate, a third sliding column, a second limiting rod, a second connecting plate and a second scraper of the PCB board production and processing device of the present invention;

fig. 13 is a schematic perspective view of a second mounting bracket, a first mounting plate, a separation system and a second milling cutter of the PCB board production and processing apparatus of the present invention;

fig. 14 is a schematic perspective view of a sliding sleeve, a spline shaft, a second mounting plate, a second milling cutter, a third spring expansion column, a third fixing plate, a round rod, a roller, a fourth fixing plate and a third scraper of the PCB production and processing device.

Reference numerals illustrate: 1-a frame, 2-a circular base plate,

201-DD motor, 202-frustum, 203-bearing plate, 204-first mounting bracket, 205-first annular plate, 206-guide plate, 207-collecting box, 208-baffle, 209-first electric push rod, 210-disc, 211-annular ring, 212-connecting column, 213-first spring expansion column, 214-limiting block,

301-hydraulic rod, 302-second mounting bracket, 303-first mounting plate, 304-electric slide rail, 305-electric slide block, 306-limit plate, 307-first slide column, 308-first fixed plate, 309-second spring telescoping column, 310-second fixed plate, 311-driver, 312-first milling cutter, 313-second electric push rod, 314-first push block, 315-third electric push rod, 316-second push block, 317-second ring plate, 318-first curved plate, 319-first cylinder, 320-first press plate, 321-second slide column, 322-first limit rod, 323-first connecting plate, 324-first scraper, 325-second curved plate, 326-second cylinder, 327-second press plate, 328-third slide column, 329-second limit rod, 330-second connecting plate, 331-second scraper,

401-third mounting bracket, 402-motor, 403-first straight gear, 404-sliding sleeve, 405-spline shaft, 406-second straight gear, 407-fourth electric push rod, 408-third connecting plate, 409-second mounting plate, 410-second milling cutter, 411-third spring expansion post, 412-third fixing plate, 413-round bar, 414-roller, 415-fourth fixing plate, 416-third scraper,

2 a-central groove, 2 b-positioning groove, 2 c-arc blank plate, 2 d-waste plate, 2 e-arc base plate, 203 a-central column, 203 b-eccentric column, 203 c-annular groove, 303 a-arc chute, 306 a-guiding chute, 320 a-first special-shaped chute, 320 b-first limit chute, 327 a-second special-shaped chute, 327 b-second limit chute.

Detailed Description

Embodiments according to the present invention will be described below with reference to the drawings. In the following drawings, the scale of each layer and each member is schematically shown with appropriate modification so that each layer and each member are distinguishable. It is only stated that the terms of orientation such as up, down, left, right, front, back, inner, outer, etc. used in this document or the imminent present invention, are used only with reference to the drawings of the present invention, and are not meant to be limiting in any way.

Examples

A PCB production and processing device, as shown in figures 1-14, comprises a frame 1 and a rotating system; the front part of the upper surface of the frame 1 is connected with a rotating system; also included are a cutting system, a first milling cutter 312, a first scraper 324, a second scraper 331, a separating system, and a second milling cutter 410; the rear part of the upper surface of the frame 1 is connected with a cutting system; eight first milling cutters 312 are connected to the cutting system, one group of every two first milling cutters 312 is distributed in an annular array; four first scrapers 324 are connected to the cutting system; four second scrapers 331 are connected to the cutting system; the cutting system is connected with a separation system; two second milling cutters 410 are connected to the separation system.

The rotating system comprises a DD motor 201, a frustum 202, a bearing plate 203, a first mounting bracket 204, a first annular plate 205, a guide plate 206, a collecting box 207, a baffle 208 and a limiting component; the DD motor 201 is fixedly connected to the front part of the upper surface of the frame 1; the rotating part of the DD motor 201 is connected with a frustum 202 through bolts; the upper surface of the frustum 202 is fixedly connected with a bearing plate 203; four first mounting brackets 204 are fixedly connected to the front part of the upper surface of the frame 1, and the four first mounting brackets 204 are distributed in an annular array; four first mounting brackets 204 are located outside the DD motor 201; the four first mounting brackets 204 are fixedly connected with a first annular plate 205, and the inner annular surface of the first annular plate 205 is contacted with the frustum 202; the left front part and the left rear part of the first annular plate 205 are fixedly connected with a guide plate 206 respectively; the left part of the upper surface of the frame 1 is fixedly connected with a collecting box 207; the collecting box 207 is fixedly connected with the two guide plates 206; a baffle 208 is fixedly connected to the rear part of the inner annular surface of the first annular plate 205, and the baffle 208 is contacted with the frustum 202; a limiting component is connected in the middle of the DD motor 201; the stop assembly is connected to the frustum 202.

Twelve arc-shaped plates are arranged on the bearing plate 203 and distributed in an annular array.

A center post 203a is provided at the center of the upper surface of the receiving plate 203, and an eccentric post 203b is provided on the right side of the center post 203 a.

The upper surface of the receiving plate 203 is also provided with an annular groove 203c to prevent the two second milling cutters 410 from contacting the receiving plate 203 during cutting.

The limiting assembly comprises a first electric push rod 209, a disc 210, a circular ring 211, a connecting column 212, a first spring telescopic column 213 and a limiting block 214; the middle part of the DD motor 201 is fixedly connected with a first electric push rod 209; the telescopic part of the first electric push rod 209 is fixedly connected with a disc 210; the circular ring 211 is rotatably connected to the disc 210; twelve connecting columns 212 are fixedly connected to the upper surface of the circular ring 211, and the twelve connecting columns 212 are distributed in an annular array; each connecting column 212 is fixedly connected with a first spring telescopic column 213; a limiting block 214 is fixedly connected to the telescopic end of each first spring telescopic column 213; twelve limiting blocks 214 are inserted into the frustum 202.

The cutting system comprises a hydraulic rod 301, a second mounting bracket 302, a first mounting plate 303, a power assembly, a cutting assembly, a second annular plate 317 and a scraping assembly; two hydraulic rods 301 are fixedly connected to the rear part of the upper surface of the frame 1; the telescopic parts of the two hydraulic rods 301 are fixedly connected with a second mounting bracket 302; the lower surface of the second mounting bracket 302 is fixedly connected with a first mounting plate 303; four arc-shaped sliding grooves 303a are formed in the first mounting plate 303, and the four arc-shaped sliding grooves 303a are distributed in an annular array; four power components are connected to the first mounting plate 303, and the four power components are distributed in an annular array; the four power components are respectively connected with a cutting component, and the four cutting components are distributed in an annular array; a second annular plate 317 is fixedly connected to the lower surface of the first mounting plate 303; four scraping assemblies are connected to the inner annular surface of the second annular plate 317, and the four scraping assemblies are distributed in an annular array.

The cutting assembly comprises a limiting plate 306, a first sliding column 307, a first fixing plate 308, a second spring telescopic column 309, a second fixing plate 310, a driver 311, a second electric push rod 313, a first push block 314, a third electric push rod 315 and a second push block 316; the power component is connected with a limiting plate 306; the limiting plate 306 is provided with a guide chute 306a; the limiting plate 306 is connected with a first sliding column 307 in a sliding way, and the upper part of the first sliding column 307 is positioned in the guide sliding groove 306a; the first spool 307 is slidably connected to the first mounting plate 303, and the lower portion of the first spool 307 is located in the front arc chute 303 a; the upper surface of the limiting plate 306 is fixedly connected with a first fixing plate 308; a second spring telescopic column 309 is fixedly connected to the left side surface of the first fixing plate 308; the telescopic end of the second spring telescopic column 309 is fixedly connected with the first sliding column 307; the lower surface of the first sliding column 307 is fixedly connected with a second fixing plate 310; the left part of the lower surface and the right part of the lower surface of the second fixing plate 310 are fixedly connected with a driver 311 respectively; two drivers 311 are fixedly connected with a first milling cutter 312 respectively; the left side surface of the second fixing plate 310 is provided with a second electric push rod 313; the telescopic part of the second electric push rod 313 is fixedly connected with a first push block 314; a third electric push rod 315 is installed on the right side surface of the second fixing plate 310; the second pushing block 316 is fixedly connected to the telescopic part of the third electric push rod 315.

The scraping assembly comprises a first arc plate 318, a first cylinder 319, a first pressing plate 320, a second sliding post 321, a first limiting rod 322, a first connecting plate 323, a first scraper 324, a second arc plate 325, a second cylinder 326, a second pressing plate 327, a third sliding post 328, a second limiting rod 329, a second connecting plate 330 and a second scraper 331; a first arc bending plate 318 is fixedly connected to the front part of the inner ring surface of the second annular plate 317; the lower surface of the first curved plate 318 is fixedly connected with a first cylinder 319; the lower surface of the first cylinder 319 is fixedly connected with a first pressing plate 320; the first pressing plate 320 is provided with a first special-shaped chute 320a and a first limit chute 320b; the first pressing plate 320 is slidably connected with a second sliding post 321, and the second sliding post 321 is located in the first special-shaped sliding groove 320 a; the upper part of the outer surface of the second sliding post 321 is fixedly connected with a first limit rod 322; the first limiting rod 322 is in sliding connection with the first pressing plate 320, and the first limiting rod 322 is positioned in the first limiting chute 320b; the lower part of the outer surface of the second sliding post 321 is rotatably connected with a first connecting plate 323; the first connecting plate 323 slides in the first special-shaped chute 320 a; two torsion springs are connected between the first connecting plate 323 and the second sliding post 321; the first connecting plate 323 is rotatably connected with the first scraper 324, and two torsion springs are connected between the first connecting plate 323 and the first scraper 324; a second curved plate 325 is fixedly connected to the front part of the inner ring surface of the second annular plate 317, and the second curved plate 325 is positioned on the right side of the first curved plate 318; the lower surface of the second curved plate 325 is fixedly connected with a second cylinder 326; a second pressing plate 327 is fixedly connected to the lower surface of the second cylinder 326; the second pressing plate 327 is provided with a second special-shaped chute 327a and a second limit chute 327b; the second pressing plate 327 is slidably connected with a third sliding column 328, and the third sliding column 328 is positioned in the second special-shaped sliding groove 327 a; the upper part of the outer surface of the third sliding column 328 is fixedly connected with a second limit rod 329; the second limiting rod 329 is in sliding connection with the second pressing plate 327, and the second limiting rod 329 is positioned in the second limiting chute 327b; the lower part of the outer surface of the third sliding column 328 is rotatably connected with a second connecting plate 330; the second connecting plate 330 slides in the second profiled sliding groove 327 a; two torsion springs are connected between the second connecting plate 330 and the third spool 328; the second connection plate 330 is rotatably connected with the second scraper 331, and two torsion springs are connected between the second connection plate 330 and the second scraper 331.

The separation system comprises a third mounting bracket 401, a motor 402, a first straight gear 403, a sliding sleeve 404, a spline shaft 405, a second straight gear 406, a fourth electric push rod 407, a third connecting plate 408, a second mounting plate 409, a third spring telescopic column 411, a third fixing plate 412, a round rod 413, a roller 414, a fourth fixing plate 415 and a third scraper 416; a third mounting bracket 401 is fixedly connected to the upper surface of the second mounting bracket 302; a motor 402 is connected to the third mounting bracket 401 through bolts; the output shaft of the motor 402 is fixedly connected with a first straight gear 403; the second mounting bracket 302 and the first mounting plate 303 are connected with a sliding sleeve 404 in a common rotation manner; the sliding sleeve 404 is positioned in front of the third mounting bracket 401; the inner annular surface of the sliding sleeve 404 is connected with a spline shaft 405 in a sliding way; a second straight gear 406 is fixedly connected to the upper part of the outer ring surface of the sliding sleeve 404; the second spur gear 406 is meshed with the first spur gear 403; a fourth electric push rod 407 is fixedly connected to the upper surface of the second mounting bracket 302; the fourth electric push rod 407 is located in front of the sliding sleeve 404; a third connecting plate 408 is fixedly connected with the telescopic part of the fourth electric push rod 407; the third connecting plate 408 is rotatably connected with the spline shaft 405; a second mounting plate 409 is fixedly connected to the lower surface of the spline shaft 405; the second mounting plate 409 is fixedly connected with two second milling cutters 410; two third spring telescopic columns 411 are fixedly connected to the middle of the lower surface of the second mounting plate 409; the telescopic ends of the two third spring telescopic columns 411 are fixedly connected with a third fixing plate 412; a round bar 413 is fixedly connected to the third fixing plate 412; the left part of the outer surface and the right part of the outer surface of the round rod 413 are respectively and rotatably connected with a roller 414; a fourth fixing plate 415 is fixedly connected to the left side surface and the right side surface of the round rod 413 respectively; a third scraper 416 is fixedly connected to opposite sides of the fourth fixing plates 415, and the third scrapers 416 are symmetrically distributed around the third fixing plate 412.

The power assembly comprises an electric slide rail 304 and an electric slide block 305; an electric sliding rail 304 is connected to the upper surface of the first mounting plate 303 through bolts; the outer surface of the electric sliding rail 304 is connected with an electric sliding block 305 in a sliding way; the electric slide block 305 is fixedly connected with the limiting plate 306.

As shown in fig. 1-12, the rotary system and the cutting system operate in the following manner:

the rotation is that the visual angle direction is from front to back, from top to bottom and from right to left; when in use, the PCB production and processing device is firstly placed at a required position and stably on the ground, firstly, an operator prepares a circular substrate 2 in advance, a central groove 2a and a positioning groove 2b are formed in the circular substrate 2, then one surface with the central groove 2a and the positioning groove 2b is downwards placed on a bearing plate 203, so that the central groove 2a of the circular substrate 2 coincides with a central column 203a, the positioning groove 2b coincides with an eccentric column 203b, the circular substrate 2 is prevented from flying out of the bearing plate 203 when rotating, as the circular PCB substrate can be formed by combining a plurality of arc-shaped PCB boards, in the prior art, a circular PCB substrate is cut on the PCB substrate through equipment, so that a large circular PCB substrate in the middle of the PCB substrate needs to be discarded, the waste of the PCB substrate is caused, so that the two hydraulic rods 301 are controlled to shrink, the second mounting bracket 302, the first mounting plate 303, the power assembly, the cutting assembly, the second ring plate 317, the scraping assembly, the first milling cutter 312, the first scraping cutter 324, the second scraping cutter 331, the separating system and the second milling cutter 410 are driven to move downwards together, when the four first scraping cutters 324 and the four second scraping cutters 331 are attached to the upper surface of the circular substrate 2, the lower surfaces of the four first pressing plates 320 and the four second pressing plates 327 are contacted with the upper surface of the circular substrate 2, after the circular substrate 2 is pressed, the two hydraulic rods 301 stop shrinking, and at this time, the eight first milling cutters 312 are all located on the outer side of the circular substrate 2;

The working mode of the four cutting assemblies for cutting the arc-shaped blank plate 2c is as follows:

the four power components synchronously run, each drive one cutting component, one of the power components and the cutting component is taken as an example, two drivers 311 are controlled to be opened, each drive one first milling cutter 312 to rotate continuously along the axis of the driver, then the electric sliding block 305 is controlled to move forwards on the outer surface of the electric sliding rail 304, the electric sliding block 305 drives the limiting plate 306, the first sliding column 307, the first fixing plate 308, the second spring telescopic column 309, the second fixing plate 310, the drivers 311, the first milling cutter 312, the second electric push rod 313, the first push block 314, the third electric push rod 315 and the second push block 316 to move backwards, the first sliding column 307 moves backwards and simultaneously moves rightwards in the guide sliding groove 306a, the telescopic ends of the second spring telescopic column 309 are forced to shrink, the first sliding column 307 drives the two first milling cutters 312 to move against the two cambered surfaces of the arc plates on the bearing plate 203, the circular substrate 2 is cut by the two first milling cutters 312, two arc-shaped slits are gradually formed, the first sliding column 307 is contacted with the second sliding column 321 and the third sliding column 328 by the first pushing block 314 and the second pushing block 316 in the sliding process, the second sliding column 321 and the third sliding column 328 are pushed to slide in the first special-shaped sliding groove 320a and the second special-shaped sliding groove 327a respectively, the second sliding column 321 slides together with the first limiting rod 322, the first connecting plate 323 and the first scraper 324, the first limiting rod 322 plays a limiting role, the second sliding column 321 is prevented from swinging at will with the first connecting plate 323 and the first scraper 324 in the moving process, and the same third sliding column 328 slides together with the second limiting rod 329, the second connecting plate 330 and the second scraper 331, and the second limiting rod 329 plays a limiting role;

When the second sliding post 321 slides to the end of the first special-shaped sliding groove 320a, the second electric push rod 313 is controlled to shrink, the first push block 314 is driven to move upwards, the first push block 314 is separated from the second sliding post 321, the second sliding post 321 is not pushed to slide, the left driver 311 is contacted with the first connecting plate 323, the first connecting plate 323 is forced to swing backwards anticlockwise with the first scraper 324 taking the second sliding post 321 as a circle center, the first connecting plate 323 and the first scraper 324 are prevented from being contacted with the rotating first milling cutter 312, the problems of collision or interference and the like occur, and after the first connecting plate 323 is separated from the left driver 311, the two torsion springs are driven to reset automatically with the first connecting plate 323 and the first scraper 324;

similarly, when the third sliding post 328 slides to the end of the second special-shaped sliding groove 327a, the third electric push rod 315 is controlled to shrink, the second push block 316 is driven to move upwards, the second push block 316 is separated from the third sliding post 328, the third sliding post 328 is not pushed to slide, the right driver 311 is also contacted with the second connecting plate 330, the second connecting plate 330 and the second scraper 331 are forced to swing backwards clockwise by taking the third sliding post 328 as the center of a circle, the second connecting plate 330 and the second scraper 331 are prevented from being contacted with the rotary first milling cutter 312, the problems of collision or interference and the like occur, and after the second connecting plate 330 is separated from the right driver 311, the two torsion springs bring the first connecting plate 323 and the first scraper 324 to reset automatically;

When the first sliding column 307 slides to the tail end of the arc chute 303a, the two first milling cutters 312 cut two arc slits on the circular substrate 2, and two adjacent arc slits form an arc blank plate 2c, at this time, the two drivers 311 are controlled to be closed, the two first milling cutters 312 are controlled to stop rotating, and then the second electric push rod 313 and the third electric push rod 315 are controlled to push out, so as to drive the connected components to move downwards, and then the electric sliding blocks 305 are controlled to move forwards, so that the connected components are driven to move together, and the first sliding column 307 slides from the tail end of the arc chute 303a to the head end;

the left driver 311 moves back to contact with the first connecting plate 323, dials the first connecting plate 323 and the first scraper 324 to the front of the left Fang Qudong device 311, then the first push block 314 contacts with the second sliding post 321, pushes the second sliding post 321 to slide from the tail end of the first special-shaped sliding groove 320a to the head end, and the first scraper 324 keeps the state of being attached to the upper surface of the round substrate 2 all the time, so that the first scraper 324 moves back along the track of the arc-shaped seam of the left first milling cutter 312, scrapes the burrs left on the upper surface of the arc-shaped blank plate 2c, controls the second electric push rod 313 to shrink after the second sliding post 321 slides to the head end of the first special-shaped sliding groove 320a, drives the connected parts to reset, and does not slide along the second sliding post 321, but the first connecting plate 323 and the first scraper 324 are still positioned in front of the left Fang Qudong device 311, and continuously forces the first connecting plate 323 and the first scraper 324 to swing clockwise around the second sliding post 321 as a center, and scrapes the burrs left on the upper surface of the blank plate 2c in the swinging range;

The right driver 311 is also contacted with the second connecting plate 330 in the backward moving process, the second connecting plate 330 and the second scraper 331 are moved to the front of the right driver 311, then the second pushing block 316 is contacted with the third sliding column 328, the third sliding column 328 is pushed to slide from the tail end of the first limit sliding chute 320b to the head end, and the second scraper 331 always keeps a state of being attached to the upper surface of the round base plate 2, therefore, the second scraper 331 moves back along the track of the arc-shaped seam of the right first milling cutter 312, the residual burrs on the right part of the upper surface of the arc-shaped blank plate 2c are scraped, after the third sliding column 328 slides to the head end of the first limit sliding chute 320b, the third electric push rod 315 is controlled to shrink, the connected parts are driven to reset, the third sliding column 328 is not carried over, but the second connecting plate 330 and the second scraper 331 are still positioned in front of the right driver 311, the second scraper 331 is continuously forced to swing anticlockwise by taking the third sliding column 328 as a circle center, the second scraper 331 is scraped off, the residual burrs on the right part of the upper surface of the arc-shaped blank plate 2c are also scraped off, after the third sliding column 328 slides to the first limit sliding chute 320b, the arc-shaped blank plate 2c is cut, and the arc-shaped blank plate 2c is cut to the arc-shaped blank 2c is cut, and the arc-shaped blank 2c is cut by the arc-shaped blank 2 b is cut, and the arc-shaped blank 2 is cut by the arc-shaped blank 2 b is cut;

When the four cutting assemblies are reset, the hydraulic rod 301 is controlled to push out, the connected components are driven to reset, the four first pressing plates 320 and the four second pressing plates 327 do not press the round substrate 2 to be cut any more, the rotating part of the DD motor 201 is controlled to rotate clockwise, the frustum 202, the bearing plate 203, the circular ring 211, the connecting column 212, the first spring telescopic column 213, the limiting block 214 and the round substrate 2 to be cut are driven to rotate clockwise for thirty degrees, the rotating part of the DD motor 201 is controlled to stop rotating, the hydraulic rod 301 is controlled to shrink, the connected components are driven to move together, and the four first pressing plates 320 and the four second pressing plates 327 press the round substrate 2 to be cut any more;

when the round substrate 2 to be cut is pressed by the four first pressing plates 320 and the four second pressing plates 327, controlling the four power components, repeating the operation once according to the operation mode of cutting the arc blank plates 2c by the four cutting components, cutting the four arc blank plates 2c again on the round substrate 2 to be cut after the operation is completed, and intersecting the two arc seam ends between two adjacent arc blank plates 2c, so that one waste plate 2d can fall off between two adjacent arc blank plates 2c, and the four waste plates 2d fall on the frustum 202;

The four power components are controlled again, the working mode that the four cutting components cut the arc-shaped blank plates 2c is repeatedly operated once, and four arc-shaped blank plates 2c and eight fallen waste plates 2d are formed again;

after the round substrate 2 is cut to form twelve arc blank plates 2c, the first electric push rod 209 is controlled to push out, so as to drive the disc 210, the ring 211, the connecting column 212, the first spring telescopic column 213 and the limiting blocks 214 to move upwards together, so that the twelve limiting blocks 214 can move to the position when the waste plate 2d does not fall off, and eight limiting blocks 214 can be respectively contacted with one first pressing plate 320 or one second pressing plate 327 in the moving process, so that the eight limiting blocks can not move upwards, and the telescopic ends of the eight first spring telescopic columns 213 are forced to shrink, at this time, the twelve limiting blocks 214 limit the twelve arc blank plates 2c, and when the subsequent cutting and separating are prevented, the twelve arc blank plates 2c are carried to move, so that the arc substrate 2e after the cutting and forming is damaged.

As shown in fig. 1-6 and fig. 13-14, the rotation system and the separation system operate in the following manner:

when twelve arc blank plates 2c on the circular base plate 2 are restrained, the output shaft of the motor 402 is controlled to rotate to drive the first spur gear 403 to rotate, the first spur gear 403 drives the sliding sleeve 404, the spline shaft 405, the second spur gear 406, the second mounting plate 409, the second milling cutter 410, the third spring telescopic column 411, the third fixing plate 412, the round bar 413, the roller 414, the fourth fixing plate 415 and the third scraper 416 to rotate together, then the fourth electric push rod 407 is controlled to push out to drive the spline shaft 405, the second mounting plate 409, the second milling cutter 410, the third spring telescopic column 411, the third fixing plate 412, the round bar 413, the roller 414, the fourth fixing plate 415 and the third scraper 416 to move downwards together, after the two second milling cutters 410, the two rollers 414 and the two third scrapers 416 are simultaneously contacted with the upper surfaces of the twelve arc blank plates 2c, the second mounting plate 409 continuously moves downwards, wherein the two rotating second milling cutters 410 cut the twelve arc blank plates 2c and continuously moves downwards, the two rollers 414 do not move downwards any more and rotate on the upper surfaces of the twelve arc blank plates 2c, and the two third blades 416 are also attached to the upper surfaces of the twelve arc blank plates 2c to rotate, so that the telescopic ends of the two third spring telescopic columns 411 are forced to be compressed, burrs generated in the cutting process of the two second milling cutters 410 are scraped by the rotating two third blades 416, after the two second milling cutters 410 cut downwards into the annular grooves 203c, the twelve arc blank plates 2c are completely separated, after twelve arc base plates 2e are formed, the output shafts of the motors 402 are controlled to stop rotating, and the fourth electric push rods 407 are controlled to push out to drive connected components to reset;

The first electric push rod 209 is controlled to shrink to drive the connected components to reset, the two hydraulic rods 301 are controlled to push out to drive the connected components to move upwards to reset, after reset is completed, an operator takes away twelve arc-shaped substrates 2e on the bearing plate 203 and the small round substrate in the middle, then the DD motor 201 rotating part is controlled to rotate clockwise to drive the connected components, the waste plate 2d on the frustum 202 and cutting scraps on the frustum 202 to rotate together, under the action of the baffle 208, the waste plate 2d on the frustum 202 and the cutting scraps on the frustum 202 are pushed into the collecting box 207, the work of collecting the waste plate 2d and the cutting scraps by the operator is omitted, the burden of the operator is reduced, seven arc-shaped substrates 2e are taken out to be combined into an annular PCB substrate as shown in fig. 3, and therefore, the utilization rate of the PCB substrate is improved, and the waste of the PCB substrate is reduced.

It is to be understood that the above description is intended to be illustrative only and is not intended to be limiting. Those skilled in the art will appreciate variations of the present invention that are intended to be included within the scope of the claims herein.

Claims (10)

1. A PCB production and processing device comprises a frame (1) and a rotating system; the front part of the upper surface of the frame (1) is connected with a rotating system; the method is characterized in that: the cutting system, the first milling cutter (312), the first scraper (324), the second scraper (331), the separating system and the second milling cutter (410) are also included; the rear part of the upper surface of the frame (1) is connected with a cutting system; eight first milling cutters (312) for cutting the PCB are connected to the cutting system, one group of every two first milling cutters (312) is distributed in an annular array; the cutting system is connected with four first scrapers (324) for scraping burrs; the cutting system is connected with four second scrapers (331) for scraping burrs; the cutting system is connected with a separation system; two second milling cutters (410) for cutting the PCB board are connected to the separating system.

2. The PCB production and processing apparatus of claim 1, wherein: the rotating system comprises a DD motor (201), a frustum (202), a bearing plate (203), a first mounting bracket (204), a first annular plate (205), a guide plate (206), a collecting box (207), a baffle plate (208) and a limiting component; a DD motor (201) is fixedly connected at the front part of the upper surface of the frame (1); a frustum (202) is fixedly connected to the rotating part of the DD motor (201); the upper surface of the frustum (202) is fixedly connected with a bearing plate (203); four first mounting brackets (204) are fixedly connected to the front part of the upper surface of the frame (1), and the four first mounting brackets (204) are distributed in an annular array; four first mounting brackets (204) are positioned on the outer side of the DD motor (201); the four first mounting brackets (204) are fixedly connected with a first annular plate (205) together, and the inner annular surface of the first annular plate (205) is contacted with the frustum (202); the left front part and the left rear part of the first annular plate (205) are fixedly connected with a guide plate (206) respectively; the left part of the upper surface of the frame (1) is fixedly connected with a collecting box (207); the collecting box (207) is fixedly connected with the two guide plates (206); a baffle (208) is fixedly connected to the rear part of the inner ring surface of the first ring plate (205), and the baffle (208) is contacted with the frustum (202); a limiting component is connected in the middle of the DD motor (201); the limiting component is connected with the frustum (202).

3. The PCB production and processing apparatus of claim 2, wherein: twelve arc-shaped plates are arranged on the bearing plate (203) and distributed in an annular array.

4. The PCB production and processing apparatus of claim 2, wherein: a center post (203 a) is provided at the center of the upper surface of the receiving plate (203), and an eccentric post (203 b) is provided on the right side of the center post (203 a).

5. The PCB production and processing apparatus of claim 2, wherein: the upper surface of the receiving plate (203) is also provided with an annular groove (203 c) for preventing the two second milling cutters (410) from contacting the receiving plate (203) during the cutting process.

6. The device for producing and processing the PCB according to claim 5, wherein: the limiting assembly comprises a first electric push rod (209), a disc (210), a circular ring (211), a connecting column (212), a first spring telescopic column (213) and a limiting block (214); the middle part of the DD motor (201) is fixedly connected with a first electric push rod (209); a disc (210) is fixedly connected to the telescopic part of the first electric push rod (209); the circular disc (210) is rotationally connected with a circular ring (211); twelve connecting columns (212) are fixedly connected to the upper surface of the circular ring (211), and the twelve connecting columns (212) are distributed in an annular array; each connecting column (212) is fixedly connected with a first spring telescopic column (213); a limiting block (214) is fixedly connected to the telescopic end of each first spring telescopic column (213); twelve limiting blocks (214) are inserted into the frustum (202).

7. The device for producing and processing the PCB according to claim 6, wherein: the cutting system comprises a hydraulic rod (301), a second mounting bracket (302), a first mounting plate (303), a power assembly, a cutting assembly, a second annular plate (317) and a scraping assembly; two hydraulic rods (301) are fixedly connected to the rear part of the upper surface of the frame (1); the telescopic parts of the two hydraulic rods (301) are fixedly connected with a second mounting bracket (302) together; the lower surface of the second mounting bracket (302) is fixedly connected with a first mounting plate (303); four arc-shaped sliding grooves (303 a) are formed in the first mounting plate (303), and the four arc-shaped sliding grooves (303 a) are distributed in an annular array; four power components are connected to the first mounting plate (303) and distributed in an annular array; the four power components are respectively connected with a cutting component, and the four cutting components are distributed in an annular array; a second annular plate (317) is fixedly connected to the lower surface of the first mounting plate (303); the inner annular surface of the second annular plate (317) is connected with four scraping assemblies, and the four scraping assemblies are distributed in an annular array.

8. The device for producing and processing the PCB according to claim 7, wherein: the cutting assembly comprises a limiting plate (306), a first sliding column (307), a first fixing plate (308), a second spring telescopic column (309), a second fixing plate (310), a driver (311), a second electric push rod (313), a first push block (314), a third electric push rod (315) and a second push block (316); the power component is connected with a limiting plate (306); a guide chute (306 a) is arranged on the limiting plate (306); a first sliding column (307) is connected to the limiting plate (306) in a sliding way, and the upper part of the first sliding column (307) is positioned in the guide sliding groove (306 a); the first sliding column (307) is in sliding connection with the first mounting plate (303), and the lower part of the first sliding column (307) is positioned in the front arc-shaped sliding groove (303 a); the upper surface of the limiting plate (306) is fixedly connected with a first fixing plate (308); the left side surface of the first fixing plate (308) is fixedly connected with a second spring telescopic column (309); the telescopic end of the second spring telescopic column (309) is fixedly connected with the first sliding column (307); the lower surface of the first sliding column (307) is fixedly connected with a second fixing plate (310); the left part of the lower surface and the right part of the lower surface of the second fixed plate (310) are fixedly connected with a driver (311) respectively; two drivers (311) are fixedly connected with a first milling cutter (312) respectively; the left side surface of the second fixed plate (310) is provided with a second electric push rod (313); a first push block (314) is fixedly connected to the telescopic part of the second electric push rod (313); a third electric push rod (315) is arranged on the right side surface of the second fixed plate (310); the telescopic part of the third electric push rod (315) is fixedly connected with a second push block (316).

9. The device for producing and processing the PCB according to claim 8, wherein: the scraping assembly comprises a first arc bending plate (318), a first cylinder (319), a first pressing plate (320), a second sliding column (321), a first limiting rod (322), a first connecting plate (323), a first scraper (324), a second arc bending plate (325), a second cylinder (326), a second pressing plate (327), a third sliding column (328), a second limiting rod (329), a second connecting plate (330) and a second scraper (331); a first arc bending plate (318) is fixedly connected to the front part of the inner ring surface of the second annular plate (317); the lower surface of the first curved plate (318) is fixedly connected with a first cylinder (319); the lower surface of the first cylinder (319) is fixedly connected with a first pressing plate (320); the first pressing plate (320) is provided with a first special-shaped chute (320 a) and a first limit chute (320 b); the first pressing plate (320) is connected with a second sliding column (321) in a sliding way, and the second sliding column (321) is positioned in the first special-shaped sliding groove (320 a); the upper part of the outer surface of the second sliding column (321) is fixedly connected with a first limit rod (322); the first limiting rod (322) is in sliding connection with the first pressing plate (320), and the first limiting rod (322) is positioned in the first limiting chute (320 b); the lower part of the outer surface of the second sliding column (321) is rotatably connected with a first connecting plate (323); the first connecting plate (323) slides in the first special-shaped sliding groove (320 a); two torsion springs are connected between the first connecting plate (323) and the second sliding post (321); the first connecting plate (323) is rotationally connected with the first scraper (324), and two torsion springs are connected between the first connecting plate (323) and the first scraper (324); a second curved plate (325) is fixedly connected to the front part of the inner ring surface of the second annular plate (317), and the second curved plate (325) is positioned on the right side of the first curved plate (318); the lower surface of the second curved plate (325) is fixedly connected with a second cylinder (326); a second pressing plate (327) is fixedly connected to the lower surface of the second cylinder (326); the second pressing plate (327) is provided with a second special-shaped chute (327 a) and a second limit chute (327 b); a third sliding column (328) is connected to the second pressing plate (327) in a sliding way, and the third sliding column (328) is positioned in the second special-shaped sliding groove (327 a); the upper part of the outer surface of the third sliding column (328) is fixedly connected with a second limit rod (329); the second limiting rod (329) is in sliding connection with the second pressing plate (327), and the second limiting rod (329) is positioned in the second limiting chute (327 b); the lower part of the outer surface of the third sliding column (328) is rotatably connected with a second connecting plate (330); the second connecting plate (330) slides in the second special-shaped sliding groove (327 a); two torsion springs are connected between the second connecting plate (330) and the third sliding column (328); the second connecting plate (330) is rotationally connected with the second scraper (331), and two torsion springs are connected between the second connecting plate (330) and the second scraper (331).

10. The PCB production and processing apparatus of claim 9, wherein: the separation system comprises a third mounting bracket (401), a motor (402), a first straight gear (403), a sliding sleeve (404), a spline shaft (405), a second straight gear (406), a fourth electric push rod (407), a third connecting plate (408), a second mounting plate (409), a third spring telescopic column (411), a third fixing plate (412), a round rod (413), a roller (414), a fourth fixing plate (415) and a third scraper (416); a third mounting bracket (401) is fixedly connected to the upper surface of the second mounting bracket (302); a motor (402) is fixedly connected to the third mounting bracket (401); the output shaft of the motor (402) is fixedly connected with a first straight gear (403); a sliding sleeve (404) is connected to the second mounting bracket (302) and the first mounting plate (303) in a rotating way; the sliding sleeve (404) is positioned in front of the third mounting bracket (401); the inner annular surface of the sliding sleeve (404) is connected with a spline shaft (405) in a sliding way; the upper part of the outer ring surface of the sliding sleeve (404) is fixedly connected with a second straight gear (406); the second spur gear (406) is meshed with the first spur gear (403); a fourth electric push rod (407) is fixedly connected to the upper surface of the second mounting bracket (302); the fourth electric push rod (407) is positioned in front of the sliding sleeve (404); a third connecting plate (408) is fixedly connected to the telescopic part of the fourth electric push rod (407); the third connecting plate (408) is rotationally connected with the spline shaft (405); the lower surface of the spline shaft (405) is fixedly connected with a second mounting plate (409); the second mounting plate (409) is fixedly connected with two second milling cutters (410); two third spring telescopic columns (411) are fixedly connected in the middle of the lower surface of the second mounting plate (409); the telescopic ends of the two third spring telescopic columns (411) are fixedly connected with a third fixing plate (412); a round rod (413) is fixedly connected to the third fixing plate (412); the left part and the right part of the outer surface of the round rod (413) are respectively and rotatably connected with a roller (414); a fourth fixing plate (415) is fixedly connected to the left side surface and the right side surface of the round rod (413); a third scraper (416) is fixedly connected to the opposite sides of the two fourth fixing plates (415), and the two third scrapers (416) are symmetrically distributed by taking the third fixing plates (412) as the center.